Belting.



w. Bz- ADAMS. BELTING. AFPLIUATION FILED MAR.. 23, 1906x UNrrED STATESPATENT OFFICE.

WILLIAM n. ADAMS, or. LAWRENCE, MASSACHUSETTS, ASSIGNCR To WILLIAM L.BARRELL,

y oF LAWRENCE, MASSACHUSETTS.

BELTING;

Application filed March 23, 1909. i, Serial No. 485,254.

To all whom it may concern.'

Beit known that I, WLLIA'M H. ADAMS, a

citizen of the United States, and resident of Lawrence, county ofEsseX,Sta a of Massachusetts, have invented an Improvement in Belting, ofwhich the following description, in connection with the accompanyingdrawmg, is a specification, like characters on the drawing representinglike parts.

This invention has for its object the production of novel belting foruse in transmite ting ower, belt-conveyers or elevators, etc., theelt'ing constructed in accordance with my present invention possessinggreat-.

strength, increased resistance to wear and tear, and requisiteflexibility, while owing to the character of its structure it`can bereadily manufactured.

In laminated belting` as ordinarily made the stitching orother'fastening means employed to hold together Athe component layers,plies or laminar` of preferably textile material iscxposed toeonstantaml extensive wear, moisture and atmospheric action, and quicklybecomes impaired. So, too, the Aarrangement of the er-iniponent plies issuch that they allord eaehfv ther little or no material support when tlis"`impairment of the,

stitching or fastening means occurs, and

moreover the method. of construction commonly enjiployed leaves exterioropenings or joints between the diil'erent layers or plies of material ofwhich the completed structure is composed. Fliese exposed openings'orjoints `admit moisture, dust and Agrit, thereby diminisl'lling the lifeof the .belt and greatly de- 'lhe necessity of creasing its`eiliciency.4 using stitches. (the common form of fastening) which passthrough the entire thickness of the `belt results in necessarily longinter- 'lockedi stitches which are much weakeiand less flefxiblef'anddurable than shorter ones'.

In my present inventiontlobtaina very intimate relationbetween/.fthe,several plies of material, `'preferably canvas, of whichthe j belting is composed, and lobviate `the objeetionable exposed oenings or joints between the plies, herein efore-` referred to.

In accordance with my invention the body or iiller of the be'lting,composed of one or more plies of the desired material of substantiallythe width ofthe belting, is fastened 4securely to a much wider strip of'covering material adjacent one longitudinal edge thereof, and suchcovering strip is folded Specification of Letters Patent.

Patented June' s, lees..

over upon the exposed face of the body orl filler and carried around itsedge and laid upon the outer face of that portion of itself -(thecovering strip) which has been previously fastened to the bodyoi'iiller; The whole is then secured together by rows of fasteningsextended completely through all of the su erposed plies or layers offabric, so that eac i longitudinal edge of the body or iiller is coveredand protected by the overlying portion of thecover.

The various novel features'of my invention will be fully described inthesubjoined speci- -Iication and particularly pointed out in thefollowing claims.

Figure 1 is a plan view of apiece of lami nated belting embodying myinvention, the cover being partly broken out to show the body or filler,the latter being shown as made up of a plurality of superposed plies;Fig. 2 is a cross section of the belting in process of manufacture,showing the body or filler plies, y i

'fastened together and to the'cover ply of slightly more than three'times the width of the belt; Fig.. 3 is a similar View, but showing thecover carried up around one edge of the body or iiller and about to belaid upon the exposed 'fare thereofyliig. 4 isa Cross section of thebelting, after the cov r has been carried around both edges of the` bodyor iiller, across the exposed face thereoffand then folded upon itselfbeneath the body, ieady for the final fastening operation; Fig. 5 is across section of the lnnslnid beltmg, taken on the line 5 5, Fig. 1;Figs, 6 and 7 are eros` section al views showing modified forms of bodyor idler, to be referred to, secured to the coveigply in readiness tohave the latter folded or rolled around the body. r. In the sectionalviews the pliesgcomposing the body or fillerand the cover` ly, or cover,

are shown as separated from eac other in 0r- E derto more clearlyillustrate the construction.

To make the belting shown inFigs. l t0 5,

l provide suitable number of pliesa, three ,3,00

being shown, of suitable material, such as canvas', of the requisitelengtlrand of alp proximately theA 'width ol' the finished be t' ing,said plies being superposed one upon an'- other to forni the body orlliller., and theyare firmlysecr-red, as by parallel rows 'oi' stitching2, to-a wider strip ori," ly l) which is' to A form vthe over `of, thebeting. The body plies are So disposed upon the cover Vthat oneongitudinaledge ol' the liotlylor filler regisof the body, at b', Fig.3, folded over upon the exposed face ofthe body at b2, Fig. 4, and

- carried around the uncovered edge thereof at b3 and then laid u on theexposed faceof that portion of itse f which is fastened to the g body,as at b4, Fig. 4. Thus the fastenings 2 are eliectually covered andprotected by the material of the cover ply, and so too the juxtaposededges of the superposed plies a forming the body or filler are inelosed,concealed and protected bythe portions b', b3 of the cover, and theosition and connection of the co-ver with reliition to the body plies acause it'to share and uniformly distribute all strains to which saidplies may be subjected in th'e finished belting. The wide or cover plyb, after the foldingor rolling around 4the ody as described, and asshown in Fig, 4, is now ready to be fastened to the body, and the coveris ulled tightly around the body to bring its ree edgeb approximatelyinto position at the adjacent edge of the belting, indicated at 6"?,Fig/1, l

The stitching which is to complete the lbelting is started at the lefthand edge ofthe same, viewing Fig. 4,'"so that as the longitudilnal rowsof-through and through stitching 3, Fig. 5, approach the right hand edgeof the belting, the various superposed plies will be iiattened out andthere will be no welts or ribs present, but the finished beltngwill lieflat and smooth.

The parallel rows of stitches 3 securely .bind the previously fastenedinner or body 'plies a to the Wider cover ply b, as Will be manifest,and it will be seen that theprimary fastenings 2 are completely coveredand protected by the overlying portions b2, b4 of the cover. y

As the cover ply is folded over to present three layers I term it athree-fold cover ply, the body or filler being fastened to the primaryfold and being covered by the sec- .ondary fold b2, While the final foldb4 is superimposed or laid upon the outer face of the primary fold.'This cover ply when folded over as` described forms a species of fiattube having a single thickness at one side of the b ody and a doublethickness at the opposite side, but the .initial fastenings which secure.the body to the cover-lply are protected by the secondary and iinafolds, as will be apparent from the foregoing descri' tion.

.I-have shown the body or er as composed of three plies of materialFigs. l to 5, for convenience in illustration, but it will be understoodthat the number of such plies may be increased or decreased according tocircumstances Without changing in any way the scope of my invention.

. Referring to Fig. 6, I have shown the body Vplies a fastened togetherin pairs by lines of fastenings 4, and the double-plies thus formed aresecured to the cover-ply l, by fastenings 5, substantially aslhereinbeforc described, said cover-ply being thereafter folded over andsecured in the manner described. j

-In Fig. 7 each body ply a2, is shown as folded upon itselfbso thatthese plies will be,

before folding, su stantially twice the width of the finished belting,and the folded plies are superposed in reversed order, that is, with thefolded edge of one adjacent. thc free edges of the next' double-ply, andthe bodyplies are secured by lines of fastcnings (i to the cover-ply I)as before.

VlfhicheverI mode be adopted a structure is built up Which'contains noopening or joint for the admission of dirt or moisture, and in which thevarious superposed plies are relatively so securely interconnected andfastened or bound together that eachply acts to support the others, andthus the belting is not wholly dependent for its usefulness upon theintegrity of the outer or through and through fastening means.Consequently a considerable impairment of the covering and of theexposed fastening means may take place before the interior fasteningmeans fis affected sufficiently to permit separation of the belting intoits component plies. My novel construction also permits the exterior orcover of the belting to be made of a fabric better adapted to withstandattrition and wear than that used for the interior or bodyplies.

Various changes or modifications in details of construction andarrangement may be made by those skilled in the art without departingfrom the s irit and scope of my invention as set fort in the annexedclaims.

,Having fully described my invention, what I claim as new 4andd-esirelto secure by Letters Patent is l 1. Laminated beltinconsistincofathreefold and inclosed between it and the secondary fold ofthe cover-ply, the final fold thereof overlying the primary fold, andvfastening means uniting the body and the several folds of the cover-ply.

3. Laminated belting consisting of a threefold cover-ply, a bodycomposed of a plurality of super-posed plies of textile material,fastenings connecting said body plies to each l0 other and to theprimary fold of the coverply, the secondary fold thereof overlying theexposed face of the body and the final fold being superposed upon theprim ary fold, and rows of fastenings extended through and firmlyuniting the body plies and the several folds of the cover-ply. '4 T 4.In alaminated belting, the combination of a cover-ply slightly'more thanthree times the width of the finished belting, superposed and connectedbody plies substantially the width of the belting, vinitial fasteningsbetween said body plies and the cover-ply, the latter being foldedaround the body ,plies and superposed upon the portion of its own fabricfastened to said body plies, and linalfastenings uniting the body pliesand the several folds of the cover-ply.

5. Laminated belting consisting ofa three- I fold cover of textilematerial, a plurality vof narrower body plies of textile, materialsuperp osed upon each other and upon the primary fold of the cover,longitudinal rows of stitching uniting the body plies and suchprimaryfold, the secondary fold covering the face of l the body plies and thenal fold of the cover overlying the primary fold thereof, andlongitudinal rows of stitching passing through and uniting all of thebody plies and the several folds of the cover, the portions of the lat-40 ter between and connecting the several folds thereof inclosing thejuxtaposed longitudinal edges of the body plies.

6. Laminated belting consisting of a narvrow body orv filler ofltextilefabric, a coverply of textile fabric of slightlymore than three timesthe width of the body, fastenings connecting the body or filler and thecoverply with a longitudinal edge of one adjacent a longitudinal edge ofthe other, the coverply beingd folded continuously around the body orler, and means t o fasten together thebody and the cover-ply foldedaround it.

' 7. Laminated belting consisting of a coverl of textilematerial foldedto form a'flattened tube one side of which is single and the other sidedouble, a body composed of a plurality of superposed plies vof textilematerial inclosed between the single side of the cover tube and theinner member ofthe double side thereof, fas-tenings connecting'the body.plies 60- arid said inner member, and inde endentfasteningspassingthrough the single and double sides of the coverv tube and thecontained body plies. v I l 8. Laminated belting consisting of atriplefolded cover strip of canvas, a plurality of superposed body pliesof canvas substantially the width of the? finished belting,inclosed'between the primary and s condary folds of the cover strip,longitudina rows-of 7o stitching connecting the body plies and theprimary fold and inclosed and protected by the secondary fold, thefinalfold of the' Vcover strip lying upon the outerfface of the primary foldand protectingthe said rows of stitching, and longitudinal rows ofstitching passing through the several f lds of the cover strip and thebody plies arihjfasteni'ng all of said parts securely together. l l

In testimony whereof, I have signed my so name to this specification, inthe presence of two subscribing witnesses. 'Y

' WILLIAM H. ADAMS.

Witnesses:

J. P. SULLIVAN, PETER A. MCENEANY.

